Machine for making wroug ht-m etal bearing-boxes



(No Model.) 3 Sheets-Sheet 1. P. H. PONTAINB.- MACHINE FOR MAKING WROUGHT METAL BEARING BOXES. No. 442,430.

Patented Dec. 9, 1890.

Wineaues: wM M J7 (No Model.) 3 Sheets-Sheet 2.

P. H. FONTAINE. MACHINE FOR MAKING WROUGHT METAL BEARING BOXES. No. 442,430.

Patented Dec. 9, 1890. m

{No Modell) V 3 Sheets-Sheet 3. P. H. PONTAINE.

MACHINE FOR MAKING WROUGHT METAL BEARING BOXES. No. 442,430. Patented Dec. 9,1890.

Nrrnn STATES PATENT OFFICE.

PATRICK II. FON'IAINE, OF ELMO, VIRGINIA.

MACHINE FOR MAKING WROUGHT-METAL BEARING-BOXES.

SPECIFICATION forming part of Letters Patent No. 442,480, dated December 9, 1890.

Application filed April 16, 1890. Serial No. 348,186. (No model.)

To aZZ whom it may concern:

Be it known that 1,- PATRICK IIENRY Fox- TAINE, a citizen of the United States, residing at Elmo, in the county of Halifax and State of Virginia, have invented a certain new and Improved Machine for Making \Vrought- Metal Bearing-Boxes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention consists in certain combinations, arrangements, and constructions of mechanical elements whereby a simple and efficient machine is produced for expeditiously and cheaply making two-part bearingboxes, in which the ends and intermediate portions of cylindrical shafts are arranged to revolve, the said boxes being made from either wrought-iron, steel, or malleable iron, or other suitable metal by swaging and punching operations.

In the accompanying drawings, Figure 1 is a side view of the machine; Fig. 2, a detail side view showing the upper and lower dies slightly modified in form on their shaping, cutting, and punching surfaces. Fig. 3 is a top view of the stationary bed'plat-e with female die, guiding gage-plate, and a portion of an ejector; Fig. 4, a bottom view of the upper plate with male die. Fig. 5 is an end elevation of the machine as it appears after the ejector has ejected a half bearing-box. Fig. (3 is a perspective view of one of the halves of the box made by the machine, one half only being shown, as the other is an exact counterpart ef it; and Fig. 7 is a similar view of the lower half of the box as made by the machine when it has dies such as are shown in Fig. 2, said half having upturned flanges.

A A A A in the drawings indicate guidestandards, B a lower stationary bed or die holding plate, and A a cap-plate to which the standards are attached, as shown or in any suitable manner.

0 is an upper movable die-holding plate fitted to slide straight up and down on the guides. In the lower plate a female die I) is fitted by means of a dovetail formation a 011 the die and a dovetail slot a formed in the plate and suitably secured, as shown; and in the upper plate a male die D is fitted by means of a dovetail formation a on the die and a dovetail slot of in the plate and suitably secured, as shown. The upper plate is connected to a toggle-lever E, which is fastened by one of its limbs to a central lug or lugs of the cap-plate A and by its other limb to a lug or lugs of the upper die-holding plate. This toggle-lever is operated by a connectingrod E applied to its joint, and by gradually straightening the toggle the male die can be made to exert a gradual powerful swaging action upon metal placed between the male and female dies, and by bending the toggle to its normal position the male-die-holding plate with the die can be raised for a new op eration. The toggle may be worked by hand or steam power. A cam, screw, or any other suitable means may be employed for operating the male die. On the bottom die-holding plate, at the front end of the machine, two slotted guiding gage-strips F F are arranged, being fitted in place by dovetail formations on the under sides of the plates and a dovetail slot in the bed-plate B, and confined in position by set-screws f passed down through slots f By moving these strips nearer together they will be adapted for guiding the narrower metal sheets from which the smaller boxes are to be formed, and by moving them farther apart they will be adapted for guiding wider sheets or strips from which larger boxes are to be formed. I

On the upper die acutter G is provided for cutting off pieces of metal of proper length for forming the respective halves of the boxes, and in the lower die a cutter-reception passage I) is provided, so that the cutter G may pass into it and thus not be in the way when the male die comes down upon the female die. This die is also provided with punches c for punching screw-bolt holes a in the halves of the boxes (see Figs. 6 and '7) produced by the machine. In the lower die passages for the entrance of these punches, and also the escape of the punehings, are provided, as indicated at 0 and below these passages other larger or elongated passages c are provided in the bedplate 13 for the final escape of the punchings. The passages c are elongated, in order to adapt the bed-plate B for dies constructed for swaging larger boxes, which boxes require larger screw-bolt holes 0. Near the rear of the lower die a gage-stop d is provided for arresting the feed of the metal from which the box-halves are formed when it has been fed in a proper distance. In the upper die a recess f is provided for the reception of the gage-stop d when the upper die is brought down upon the lower die.

It is contemplated to make the halves of the boxes with flanges n and a depression 11 either exact counterparts of one another, as in Fig. 6, or one half with the flanges n, depression n, and upturned flanges c and the other without such flanges a, (see Figs. 6 and 7;) and if the latter construction is adopted the lower die will be formed with a-depression or vertical shoulders g,,and the cutters G, punches a, recess f; and the gage-stop d will-be arranged as shown in Fig. 2.. In either form. Of? die it is essential to roundroff the corners atrs, in order to avoidbreaking the metal of the-box-halves at S;

In feeding inand cutting; off the metal for the box-halves shown in Fig.0 asuffioicnt allowance must be made for the deflection of the metal intoa semicircular-form at the-middleof: the pieces from which thebo-x-halves.

areproduced, audit the upturnedflanges c aretoibemade onthe flanges n of the lower half; of: the box, as in Fig. 7, a still greaterallowance must bemade,ras the metal pieces willibe deflectednot only from astraightlineatthe'middle of theirlengths to form the semicylindrical depressions, but also at-their-ends to form the flanges 0 In cases where boxes are made from metal which isquite thick the punches cniay be required to be substituted by punches extended? entirely through the plate 0 and die Dfand held up by springs until after themetal has been swaged into the form of a boxhalfandthereupon driven down by means of ahammer or hammers actuated by hand or automatic means.

For the purpose of dischargingthe swaged halves from the upper die'D when the plate 0 is lifted, two vertical dischargingbars I; are passed down from the cap-plate A through.

the plate G and die D, as shown. On these against the cap-plate A and their lower flanged ends into cavities 7t, formed in the under surface of the, die D", while the said,

plate is descending. The force of the springs Lie overcome by the force of the toggle-leverduring the act of raising, the plate C and dieD and thus the rods retain the finished half-box beneath their lower ends while the plate and die are passing up beyond said ends. andthe half-box is thus left in a positionto. be readily discharged from the machine.

For the purpose of discharging the finished half-boxes an ejector-rod II is provided at one side of the frame, being pivoted at k to the cap-plate A thereof, as shown in Fig. 5. This ejector-rod has its long arm extended down through a slotted extension-plate B of the stationary lower die-plate. B, and its upper angular end Z is extended over a vertical spring-rod H and connected to the upper end of the same by means of a spiral spring Z and pin Z as shown in said Fig. 5. In a groove concentric with the semicircular depression in the dieD a sliding bar H which in transverse section is nearly semi-cylindrical, is fitted so as to have its discharging end occupy. normally, a position beyond the half boxes while they are being formedor swaged in the machine. sliding upand down in the plate A and in a socket-recess Z formed in the upper die-plate G, as shown. It will be seen from Fig. 5 of the drawingsthat' the normal position of the ejector-rod H and the ejecting slide-bar H is shown by dotted lines, and theposition these parts occupy when thehalf.-box has been: ejected: isshown by f ulllines.

The ejection of the finished half-boxes is effected as follows: The plate 0 inrising, after having performedits operation, comes incontact with the lower end-of the sliding-rod H and causes said rod-to press with its upper end against the under side of the, angular short arm. Z ofthe ejectorrro'd H', and thereby cause the lower-end of said ejector-rod to traverse the slot m in the ejecting slide-bar 1-1 and strike forcibly said ejector-bar and therebyproperly discharge a finished halfbox at the opposite side of the machine. During thisoperation the spring Z isstrained or compressed, and as soon as the plate 0 again beginsto descend the saidspring, acting downwardly upon the short lever-arm Z,Will cause the rodH" to fly out-wardto itsnormal position, shownby dotted lines, andtherebydraw the ejector-bar ll; toits proper position for again operating in the manner just described after another 'halfrboxis swaged and theplate O with its die'D" are raised out-of their; swaging positions.

From the aforegoingzspecificationit will be apparent that the two halves of abearingbox, with orwithout upturned flanges c" a can be made very rapidly from wrought metals, or other suitable metals, by a single swagingoperation, and thus the manufacture of such boxes is greatly reduced in cost. Furthermore, the boxes being made of finer grades of metal than ordinary cast-iron, are much stronger andlmore suitable forbearingboxes, as the surfaces of the sameare'much smoother and truer than boxes made of: cast-- iron.

In the manufacture of these boxes the metal for forming the halves might be cut into proper sizes beforeintroduction into the machine,,and if this is done the cutter and gage plates might be dispensed-with; but it is far preferable to employ the cutter and gage The rod II is capable of I plates and cut the metal in its passage through the machine.

\Vhat I claim as my invention is-- 1. In a machine for manufacturing bearingboxes, the combination of the die D, having lateral horizontal surfaces and a semicircular or nearly semicircular depression formed in it, with the upper die D, having lateral hori zontal surfaces and a semicircular or nearly semicircular projection formed on it for the purpose of swaging Wrought-iron, steel, malleable or other metal into flanged bearingbox halves, substantially as described.

2. The combination of the lower die D, having lateral horizontal surfaces and shoulders g and a semicircular or nearly semicircular depression formed in it, with the upper die D, having lateral horizontal surfaces and a semicircular or nearly semicircular projection formed on it for the purpose of swaging metal into bearing-box halves having flanges 41. and c, substantially as described.

The combination of the stationary plate 13, provided with a lower die D, having a semicircular or nearly semicircular depression and two lateral horizontal surfaces, and the sliding plate 0, carrying upper die D, having a semicircular-or nearly semicircular projection and two horizontal lateral surfaces, one of said dies being provided with a gage-stop pin (Z and a recess Z1 and the other with a recess f, substantially as described.

+1. The combination of the die-holding plate 13, having discharging-passages 0 die D, havin g recess Z), dischargirig-passages c and gagestop (I, gaging guide-plates F, the upper sliding die-holding plate 0, and die D, having cutter G, punches c, and recess f, substantially as described.

5. The combination, with the frame A A and die-plates C B, carrying dies D D, of the vertical rods I, provided with pins h and springs i, substantially as described.

6. The ejector-rod H, ejecting-bar H and sliding rod H in combination with the frame of the machine, moving die-plate C, carrying die D, and the lower die-plate B, having die D, substantially as described.

7. The combination, with the frame of the machine, of the die-plates B C, dies D D, the toggledever E, operating-rod E, bars I, ejector-rod II, ejecting-bar H and sliding rod H substantially as described.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

PATRICK II. FONTAINE. \Vitnesses:

B. O. FENWICK, J. P. THEO. LANG. 

